Improvement in locomotive signal-lights



J. M; CRULL.

Locomotive Signal-Light.

Pate nted Oct. 19, 1869..

N. PETERS, FHGTO-LVTHOGRAPNEIL WASHINGTON, D 04 waited gtatw @atwt dtfljiirr.

J. M. ORULL, OF HARRISBURG, PENNSYLVANIA, ASSIGNOR TO HI MSELF, A. G. M0- CULLEY, W. A. MIDDLETON, AND JACOB WALTERS, OE SAME PLACE.

Letters Patent N 95,991, dated October 19, 1869.

MPROVEMENT IN LOCOMOTIVE SIGNAL-LIGHTS.

The Schedule referred to in these Letters Patent and making part of the same To all whom it may concern Be it known that I, J. M. ORULL, of the city of Harrisburg, county of Dauphin, and State of Penn "sylvania, have invented a new and improved Locomothis specification, in which Figured: is a side elevation of the upper partsof the locomotive, with the signal-light mounted upon it, and with pencils or beams of light emitted from the signal upon a column of smoke.

Figure 2 is a sectional View of the signal-light fix ture, of the tops of the smoke-stack, and of the firehouse, arranged to show the height of each of those parts, respectively. h

The nature of this invention consists in arranging and placing an adjustable lamp or signal-light in the rear of the smoke-stack on a locomotive, having its refiector or reflectors so constructed, in relation to one or more oblique faces of the case, as to throw one or more pencils of light upon oragainst a: column of smoke issuing from the smoke-stack, either at rest or in motion, and rendered capable of striking and illuminating sections of said column of smoke, at variable points of the'compass, according to the direction of the wind and train, and thus, by rendering said column luminous, to .present a signal in the air, to pret'ent collisions at night.

I construct my signal-lamp with one or more oblique transparent sides, for the emission of pencils of light.

The side A, fig. 1, emits. its pencil at an angle of about forty-five degrees from the horizon.

The side B emits its pencil of rays-at an angle of about thirty degrees from the horizonl The burner R is so arranged in reference to the reflecting-su face F, fig. 2, as that the rays a b c or c d j, when reflected, will come into the field of the pencils m and a with only amodcra te divergence, as shown in fig. 2.

The pencil in is thus directed at a greater angle, so as to illuminate a column of smoke at as great a height as possible while the locomotive is at rest, and'the smoke rising in a vertical direction. The pencil n is so directed as to illuminate said colunm to the best advantage while the locomotive is in motion, in which case the column will be more or less deflected backward.

The pencil m may also be used to illuminate a col-. umn of steam issuing from ,the safety-dome K, fig. 1, when the signal is reversed.

The lamp-frame 0 O ,'fig. 2, is mounted upon apost,

G, with apulley, 0, between it and the top of the post, which pulley is fixed to the lamp, by the shaft or spindle B, which passes down through it tightly, and which is rigidly connected with the bottom of the lam S id spindle is keyed at A into the post 0' in a socket, loosely, in which it revolves.

The pulley O is connected with a pulley, G, on the ceiling of the. fire-house, by a cord, S, or its equiva lent.

The signal is thus rendered adjustable to different points, and is so made as to have the pencils of light strike the smoke column when carried away by the, wind,'out of the line of travel, or when the locomotive is sweeping a curve. I

The location of the signal is here assumed on the locomotive in the rear of the stack, but other situations may also be preferred, as on steamboat-s, the main idea being to illuminate a smoke or'steam column, to produce a visible spectacleto' prevent collisions, as explained.

1. The application of adjustable signal-lights or reflectors to locomotives, steamboats, &c., when placed in such a position as to. illuminate a portion or section of the smoke or steam issuing from the smoke-stack,

substantially as and for the purposes herein set forth.

2. The two oblique faces A B, in combination with the refiectofli, pulleys O G, and post A (3', substantially as herein set forth.

itness'es ELIAS HOLLINGER, THEoPHILUs WEAVER.

J M. GRULL. 

